146 lines
4.2 KiB
C
146 lines
4.2 KiB
C
/*
|
|
* Copyright (c) 2005, Swedish Institute of Computer Science
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* This file is part of the Contiki operating system.
|
|
*
|
|
* @(#)$Id: tcp_loader.c,v 1.1 2006/06/18 07:44:36 adamdunkels Exp $
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "contiki.h"
|
|
#include "sys/etimer.h"
|
|
#include "loader/elfloader.h"
|
|
|
|
#include "net/uip.h"
|
|
|
|
#include "dev/xmem.h"
|
|
|
|
#include "codeprop.h"
|
|
|
|
#define PRINTF(x)
|
|
|
|
PROCESS(tcp_loader_process, "TCP loader");
|
|
|
|
static
|
|
struct codeprop_state {
|
|
u16_t addr;
|
|
u16_t len;
|
|
struct pt tcpthread_pt;
|
|
} s;
|
|
|
|
/*---------------------------------------------------------------------*/
|
|
static
|
|
PT_THREAD(recv_tcpthread(struct pt *pt))
|
|
{
|
|
PT_BEGIN(pt);
|
|
|
|
/* Read the header. */
|
|
PT_WAIT_UNTIL(pt, uip_newdata() && uip_datalen() > 0);
|
|
|
|
if(uip_datalen() < sizeof(struct codeprop_tcphdr)) {
|
|
PRINTF(("codeprop: header not found in first tcp segment\n"));
|
|
uip_abort();
|
|
goto thread_done;
|
|
}
|
|
|
|
s.len = htons(((struct codeprop_tcphdr *)uip_appdata)->len);
|
|
s.addr = 0;
|
|
uip_appdata += sizeof(struct codeprop_tcphdr);
|
|
uip_len -= sizeof(struct codeprop_tcphdr);
|
|
|
|
xmem_erase(s.len, EEPROMFS_ADDR_CODEPROP);
|
|
|
|
/* Read the rest of the data. */
|
|
do {
|
|
if(uip_len > 0) {
|
|
xmem_pwrite(uip_appdata, uip_len, EEPROMFS_ADDR_CODEPROP + s.addr);
|
|
s.addr += uip_len;
|
|
}
|
|
if(s.addr < s.len) {
|
|
PT_YIELD_UNTIL(pt, uip_newdata());
|
|
}
|
|
} while(s.addr < s.len);
|
|
|
|
/* Kill old program. */
|
|
elfloader_unload();
|
|
|
|
/* Link, load, and start new program. */
|
|
int s;
|
|
static char msg[30 + 10];
|
|
s = elfloader_load(EEPROMFS_ADDR_CODEPROP);
|
|
if (s == ELFLOADER_OK)
|
|
sprintf(msg, "ok\n");
|
|
else
|
|
sprintf(msg, "err %d %s\n", s, elfloader_unknown);
|
|
|
|
/* Return "ok" message. */
|
|
do {
|
|
s = strlen(msg);
|
|
uip_send(msg, s);
|
|
PT_WAIT_UNTIL(pt, uip_acked() || uip_rexmit() || uip_closed());
|
|
} while(uip_rexmit());
|
|
|
|
/* Close the connection. */
|
|
uip_close();
|
|
|
|
thread_done:;
|
|
PT_END(pt);
|
|
}
|
|
/*---------------------------------------------------------------------*/
|
|
PROCESS_THREAD(tcp_loader_process, ev, data)
|
|
{
|
|
PROCESS_BEGIN();
|
|
|
|
tcp_listen(HTONS(CODEPROP_DATA_PORT));
|
|
|
|
while(1) {
|
|
PROCESS_YIELD();
|
|
if(ev == tcpip_event && uip_conn->lport == HTONS(CODEPROP_DATA_PORT)) {
|
|
if(uip_connected()) { /* Really uip_connecting()!!! */
|
|
if(data == NULL) {
|
|
PT_INIT(&s.tcpthread_pt);
|
|
process_poll(&tcp_loader_process);
|
|
tcp_markconn(uip_conn, &s);
|
|
} else {
|
|
PRINTF(("codeprop: uip_connected() and data != NULL\n"));
|
|
uip_abort();
|
|
}
|
|
}
|
|
recv_tcpthread(&s.tcpthread_pt); /* Run thread */
|
|
|
|
if(uip_closed() || uip_aborted() || uip_timedout()) {
|
|
PRINTF(("codeprop: connection down\n"));
|
|
tcp_markconn(uip_conn, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
PROCESS_END();
|
|
}
|